<template>
  <view class="cart-container" v-if="cart.length !== 0">
    <!-- 收货地址组件 -->
    <my-address></my-address>
    <!-- 商品列表的标题区域 -->
    <view class="cart-title">
      <!-- 左侧的图标 -->
      <uni-icons type="shop" size="18"></uni-icons>
      <!-- 右侧的文本 -->
      <text class="cart-title-text">购物车</text>
    </view>
    <!-- 循环渲染购物车中的商品信息 -->
      
    <uni-swipe-action>
      <block v-for="(goods,i) in cart" :key="i">
      <uni-swipe-action-item :right-options="options" @click="swipeItemClickHandler(goods)">
        <my-goods :goods="goods" :show-radio="true" @radio-change="radioChangeHandler" :show-num="true" @num-change="numberChangeHandler"></my-goods>
      </uni-swipe-action-item>
      </block>
    </uni-swipe-action>
    
    <!-- 使用自定义的结算组件 -->
    <my-settle></my-settle>
  </view>
  
  <!-- 空白购物车的区域 -->
  <view class="empty-cart" v-else>
    <image src="../../static/cart_empty@2x.png" class="empty-img"></image>
    <text class="tip-text">空空如也~~</text>
  </view>
</template>

<script>
  import badgeMix from '@/mixins/tabbar-badge.js'
  import {mapState, mapMutations} from 'vuex'
  export default {
   mixins:[badgeMix],
   computed:{
     ...mapState('m_cart',['cart'])
   },
    data() {
      return {
        options:[{
          text:'删除',
          style:{
            backgroundColor:'#C00000'
          }
        }]
      };
    },
   methods:{
     ...mapMutations('m_cart',['updateGoodsState','updateGoodsCount','removeGoodsById']),
     radioChangeHandler(e){
       // console.log(e)
       this.updateGoodsState(e)
     },
     numberChangeHandler(e){
       // console.log(e)
       this.updateGoodsCount(e)
     },
     swipeItemClickHandler(goods){
       // console.log(goods)
       this.removeGoodsById(goods.goods_id)
     }
   }
  }
</script>

<style lang="scss">
  .cart-container{
    padding-bottom: 50px;
  }
.cart-title{
  height: 40px;
  display: flex;
  align-items: center;
  padding-left: 5px;
  border-bottom: 1px solid #EFEFEF;
  .cart-title-text{
    font-size: 14px;
    margin-left: 10px;
  }
}
.empty-cart{
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 150px;
  .empty-img{
   width: 100px;
   height: 100px;
   
  }
  .tip-text{
   font-size: 12px;
   color: gray;
   margin-top:15px ;
  }
}

</style>
